C++ (Cpp) usbd_xfer_set_intervalの例

コード例 #1

ファイル: if_cdce.c プロジェクト: hbsciw/freebsd

static void
cdce_ncm_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
	struct cdce_softc *sc = usbd_xfer_softc(xfer);
	struct ifnet *ifp = uether_getifp(&sc->sc_ue);
	uint16_t x;
	uint8_t temp;
	int actlen;
	int aframes;

	switch (USB_GET_STATE(xfer)) {
	case USB_ST_TRANSFERRED:

		usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);

		DPRINTFN(10, "transfer complete: "
		    "%u bytes in %u frames\n", actlen, aframes);

	case USB_ST_SETUP:
		for (x = 0; x != CDCE_NCM_TX_FRAMES_MAX; x++) {
			temp = cdce_ncm_fill_tx_frames(xfer, x);
			if (temp == 0)
				break;
			if (temp == 1) {
				x++;
				break;
			}
		}

		if (x != 0) {
#ifdef USB_DEBUG
			usbd_xfer_set_interval(xfer, cdce_tx_interval);
#endif
			usbd_xfer_set_frames(xfer, x);
			usbd_transfer_submit(xfer);
		}
		break;

	default:			/* Error */
		DPRINTFN(10, "Transfer error: %s\n",
		    usbd_errstr(error));

		/* update error counter */
		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);

		if (error != USB_ERR_CANCELLED) {
			if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
				/* try to clear stall first */
				usbd_xfer_set_stall(xfer);
				usbd_xfer_set_frames(xfer, 0);
				usbd_transfer_submit(xfer);
			}
		}
		break;
	}
}

コード例 #2

ファイル: g_modem.c プロジェクト: kusumi/DragonFlyBSD

static void
g_modem_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
	struct g_modem_softc *sc = usbd_xfer_softc(xfer);
	int actlen;
	int aframes;
	int mod;
	int x;
	int max;

	usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);

	DPRINTF("st=%d aframes=%d actlen=%d bytes\n",
	    USB_GET_STATE(xfer), aframes, actlen);

	switch (USB_GET_STATE(xfer)) {
	case USB_ST_TRANSFERRED:

		sc->sc_tx_busy = 0;
		sc->sc_throughput += actlen;

		if (sc->sc_mode == G_MODEM_MODE_LOOP) {
			/* start loop */
			usbd_transfer_start(sc->sc_xfer[G_MODEM_BULK_RD]);
			break;
		} else if ((sc->sc_mode == G_MODEM_MODE_PATTERN) && (sc->sc_tx_interval != 0)) {
			/* wait for next timeout */
			break;
		}
	case USB_ST_SETUP:
tr_setup:
		if (sc->sc_mode == G_MODEM_MODE_PATTERN) {

			mod = sc->sc_pattern_len;
			max = sc->sc_tx_interval ? mod : G_MODEM_BUFSIZE;

			if (mod == 0) {
				for (x = 0; x != max; x++)
					sc->sc_data_buf[x] = x % 255;
			} else {
				for (x = 0; x != max; x++)
					sc->sc_data_buf[x] = sc->sc_pattern[x % mod];
			}

			usbd_xfer_set_frame_data(xfer, 0, sc->sc_data_buf, max);
			usbd_xfer_set_interval(xfer, 0);
			usbd_xfer_set_frames(xfer, 1);
			usbd_transfer_submit(xfer);

		} else if (sc->sc_mode == G_MODEM_MODE_LOOP) {

			if (sc->sc_tx_busy == 0)
				break;

			x = sc->sc_tx_interval;

			if (x < 0)
				x = 0;
			else if (x > 256)
				x = 256;

			usbd_xfer_set_frame_data(xfer, 0, sc->sc_data_buf, sc->sc_data_len);
			usbd_xfer_set_interval(xfer, x);
			usbd_xfer_set_frames(xfer, 1);
			usbd_transfer_submit(xfer);
		} else {
			sc->sc_tx_busy = 0;
		}
		break;

	default:			/* Error */
		DPRINTF("error=%s\n", usbd_errstr(error));

		if (error != USB_ERR_CANCELLED) {
			/* try to clear stall first */
			usbd_xfer_set_stall(xfer);
			goto tr_setup;
		}
		break;
	}
}